Means for attaching bushes or socckets to platelike bodies by flanging



'Aug. 7, 1923. 1,463,799

J. B. COCKBURN MEANS FOR ATTAGHING BUSHES OR SOCKETS TO PLATELIKE BODIES BY FLANGING Filed April 28 1921 Patented Aug. '7, i923. l i

barren sraresenr JAMES BARR GOGKBURN, OF FALKIRK, SCOTLAND.

MEANS FOR ATTACHING BUSHES OR SGCKETS PLATELHZE BODIES Application filed April 28, 1921. Serial No. 465,327.

To all whom it may concern: die D. The body C is then brought down, Be it known that 1, JAMES BARR COCK- when the supporting mandrel A enters the BURN, a subject of the King of Great Brithole in the socket H and is prevented from so am and Ireland, of Learmouth Street, collapsing by the conical part ot the body 5 Falkirk, Scotland, engineer, have invented and the resistance exerted on the supcertain new and useful improved Means for porting mandrel A by means of the spring Attaching Bushes or Sockets to Platelike E, pushes it against the taper C on the Bodies by Flanging, of which the following body C, and expands the supporting inan- '55 is a specification. drel A, thus keeping the hole or the socket My invention relates to means for inter-- ill from being distorted, while the hanging nally supporting a socket while it is being is taking place. The body G now advances, flanged to secure it in a hole in a plate and when-the hanging die B comes into contact has iior its object to simplify and cheap-en with the socket id and flanges it over on to 60 the process. the plate J. On the upward motion or the I in out my invention, l. provide a body (I, the pressure is released from the supporting mandrel of three or more secsupportnig mandrel A which allows it to tions, held in position by a suitabl ilangcome down and collapse and enables the ing die which is suitably fixed to the both, socket ii to be easily removed. 65 the lower portion of which is reduced in claims.

diameter and tapered, while the internal 1. A diametrically expansible mandrel, a

diameter of the die is lormed to suit the die by which said mandrel is carried, body tapered portion of the body. The bottom to which the die is secured, and having part or sectionol? the die is provided with a means, active during a working stroke of 7 recess which contains a spring which is rethe die, to expand the mandrel, a counter mi d i ition b a cap and screw. die, and spring therein, arranged to coact In order that my invention may be propwith said expanding means during a workerly understood and readily carried into ing stroke of the die. effect, I have hereunto appended one sheet 2. An annular, diametrically expansible 7' of drawings, of which mandrel, comprising separable segments Figure l is a section through top die. and having a tapered bore, a die by which Figure 2 is a section of Figure 1 through said mandrel is carried and in which said line 0, 3 die is axially movable, a body to which the Figure 3 shows in dotted lines of the dleis secured and having a taperedprojece0 socket finished flanged to the plate. tion arranged to operate in the tapered bore Figure d is a section of the bottom die. of the mandrel, to expand the latter dur- Rel erring to the drawings, A is the suping a working stroke of the die, a counter porting mandrel which is in three parts and die, and yieldable means in the counter die B the Hanging die which at the same time I to cushion the mandrel during the work- 85 holds the sections of the support mandrel ing stro e of the die and thereby coact with 40 together. C is the conical part of the body the said tapered projection in expanding the C. D is the bottom die,while E. is the mandrel. spring carried in the recess in the bottom die In testimony whereof I affix my signature D, and F is the cap and G the screw holdin presence of two witnesses. ing the sprin in its place. i JAMES BARR COCKBURN. The operation is as :tollows: Witnesses:

The socket H is placed in the plate J and y 0. L. LIDDLE, the whole then placed in position on bottom i JOHN TRAIN LIDDLE. 

